A person who studies jewelry is known as a gemologist or a jewelry historian, depending on their focus.
A person who studies chips is typically referred to as a food scientist or a food technologist, specializing in the field of snack food production and development.
A person who studies poisons is called a toxicologist.
A person who studies potions would be called an alchemist or a potion maker.
A person who studies metals is called a metallurgist. They specialize in understanding the properties and behavior of metals, as well as their extraction, processing, and applications in various industries.
A person who studies atoms is called a physicist, specifically in the field of atomic physics or maybe a chemist if they focus on how atoms combine to form molecules.
What is the name of a person that studies organisms
An entomologist is a person who studies insects.
A person who studies sand is known as a psammologist.
A person who studies sound is called an acoustician.
What is the name of a person that studies derivation of
A person who studies audiology would be called an audiologist.
A horologist studies time.
mr. djw studies dinos
Etymologist
chiropterologist
zoologist
A dietician.